display of quantative data

Question 1

What is a bar chart?

Answer 1

• a graph used to represent the frequency of data; the categories on the x axis have no fixed order and there is no true zero.

Question 2

what is a histogram?

Answer 2

• type of frequency distribution in which the number of scores in each category of continuous data are represented by vertical columns. There is a true zero and no spaces between the bars.

Question 3

What is negative skewed distribution?

Answer 3

• Most of the scores are bunched towards the right. The mode is to the right of the mean because the mean is affected by extreme scores tailing off to the left.

Question 4

What is normal distribution?

Answer 4

• A symmetrical bell shaped frequency distribution.
  This distribution occurs when certain variables are measured, such as IQ or the life of a light club.
• Such ‘events’ are distributed in such a way that most of the scores are clustered close to the mid point; the mean, median, and mode are at the mid point.

Question 5

What is a Pie chart?

Answer 5

• A circular graph divided into sections or slices each representing the proportion of the total.

Question 6

What is positive skewed distribution.

Answer 6

• Most of the scores are bunched towards the left. The mode is to the left of the mean because the mean is affected by the extreme scores tailing off to the right.

Question 7

What is skewed distribution?

Answer 7

• A distribution is skewed if one tail is longer than another, signifying that there are a number of extreme values to one side or the other of the mid score.